<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>error</title>
    <style>
        h1 {color: #ff0059}
    </style>
</head>
<body>
{% block content %}
<h1>不存在该用户</h1>
{% endblock %}
<br>
<br>
 <form action="http://127.0.0.1:5000">
        <input class="btn" type="submit" value="返回">
 </form>
</body>
</html>